add preliminary glut replacement test for Bullet 2.x demos
This commit is contained in:
Erwin Coumans
255
Demos3/BasicDemoCustomOpenGL2/main.cpp
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255
Demos3/BasicDemoCustomOpenGL2/main.cpp
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/*
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Bullet Continuous Collision Detection and Physics Library
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Copyright (c) 2003-2014 Erwin Coumans http://bulletphysics.org
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//This file is Copyright (c) 2014 Google Inc.
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This software is provided 'as-is', without any express or implied warranty.
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In no event will the authors be held liable for any damages arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it freely,
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subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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///This main.cpp replaces glut by Bullet 3 own platform management for OpenGL and input devices
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#include <stdio.h>
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#include "../../Demos/BasicDemo/BasicDemoPhysicsSetup.h"
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#ifdef __APPLE__
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#include "OpenGLWindow/MacOpenGLWindow.h"
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#else
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#include "GL/glew.h"
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#ifdef _WIN32
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#include "OpenGLWindow/Win32OpenGLWindow.h"
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#else
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//let's cross the fingers it is Linux/X11
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#include "OpenGLWindow/X11OpenGLWindow.h"
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#endif //_WIN32
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#endif//__APPLE__
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#include "../../Demos/OpenGL/DemoApplication.h"
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#include "../../Demos/OpenGL/GLDebugDrawer.h"
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int sWidth = 800;
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int sHeight = 600;
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DemoApplication* gApp = 0;
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bool isShiftPressed = false;
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bool isCtrlPressed = false;
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bool isAltPressed = false;
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/*
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todo: add wheel callback
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typedef void (*b3WheelCallback)(float deltax, float deltay);
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*/
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void MyKeyboardCallback(int orgKeycode, int state)
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{
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int keycode = orgKeycode;
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if (gApp)
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{
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switch (orgKeycode)
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{
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case B3G_SHIFT:
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{
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isShiftPressed = (state==1);
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break;
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}
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case B3G_ALT:
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{
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isAltPressed = (state==1);
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break;
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}
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case B3G_CONTROL:
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{
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isCtrlPressed = (state==1);
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break;
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}
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default:
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{
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}
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};
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if (state)
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{
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gApp->keyboardCallback(keycode,0,0);
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} else
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{
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gApp->keyboardUpCallback(keycode,0,0);
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}
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}
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}
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void MyMouseMoveCallback( float x, float y)
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{
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if (gApp)
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{
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//printf("mouseMotionFunc %f,%f\n",x,y);
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gApp->mouseMotionFunc(x,y);
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}
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}
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void MyMouseButtonCallback(int button, int state, float x, float y)
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{
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if (gApp)
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{
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//printf("mouseFunc %d,%d, %f,%f\n",button,state,x,y);
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gApp->mouseFunc(button,1-state,x,y);
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}
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}
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void MyResizeCallback(float width, float height)
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{
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sWidth = width;
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sHeight = height;
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if (gApp)
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{
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gApp->reshape(width,height);
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}
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}
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int main(int argc, char* argv[])
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{
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b3gDefaultOpenGLWindow* window = new b3gDefaultOpenGLWindow();
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//window->setKeyboardCallback(keyCallback);
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b3gWindowConstructionInfo wci;
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wci.m_openglVersion = 2;
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wci.m_width = sWidth;
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wci.m_height = sHeight;
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// wci.m_resizeCallback = MyResizeCallback;
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window->createWindow(wci);
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window->setResizeCallback(MyResizeCallback);
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window->setMouseButtonCallback(MyMouseButtonCallback);
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window->setMouseMoveCallback(MyMouseMoveCallback);
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window->setKeyboardCallback(MyKeyboardCallback);
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//window->setWindowTitle("render test");
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int majorGlVersion, minorGlVersion;
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if (!sscanf((const char*)glGetString(GL_VERSION), "%d.%d", &majorGlVersion, &minorGlVersion)==2)
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{
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printf("Exit: Error cannot extract OpenGL version from GL_VERSION string\n");
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exit(0);
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}
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if (majorGlVersion>=3 && wci.m_openglVersion>=3)
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{
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float retinaScale = 1.f;
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#ifndef __APPLE__
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#ifndef _WIN32
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//we need glewExperimental on Linux
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glewExperimental = GL_TRUE;
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#endif // _WIN32
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glewInit();
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#endif
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//we ned to call glGetError twice, because of some Ubuntu/Intel/OpenGL issue
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GLuint err = glGetError();
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err = glGetError();
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btAssert(err==GL_NO_ERROR);
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retinaScale = window->getRetinaScale();
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//primRenderer = new GLPrimitiveRenderer(sWidth,sHeight);
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//sth_stash* font = initFont(primRenderer );
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//gwenRenderer = new GwenOpenGL3CoreRenderer(primRenderer,font,sWidth,sHeight,retinaScale);
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} else
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{
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//OpenGL 2.x
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/*gwenRenderer = new Gwen::Renderer::OpenGL_DebugFont();
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skin.SetRender( gwenRenderer );
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pCanvas = new Gwen::Controls::Canvas( &skin );
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pCanvas->SetSize( sWidth, sHeight);
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pCanvas->SetDrawBackground( true );
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pCanvas->SetBackgroundColor( Gwen::Color( 150, 170, 170, 255 ) );
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*/
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}
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// glClearColor(0.2,0.2,0.2,1);
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BasicDemoPhysicsSetup physicsSetup;
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GraphicsPhysicsBridge br;
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physicsSetup.initPhysics(br);
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struct MyAppie : public DemoApplication
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{
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virtual void initPhysics()
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{
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}
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virtual void clientMoveAndDisplay()
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{
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}
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virtual void swapBuffers()
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{
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}
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virtual void updateModifierKeys()
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{
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m_modifierKeys = 0;
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if (isAltPressed)
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m_modifierKeys |= BT_ACTIVE_ALT;
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if (isCtrlPressed)
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m_modifierKeys |= BT_ACTIVE_CTRL;
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if (isShiftPressed)
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m_modifierKeys |= BT_ACTIVE_SHIFT;
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}
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};
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{
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MyAppie appie;
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appie.setDynamicsWorld(physicsSetup.m_dynamicsWorld);
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appie.reshape(sWidth,sHeight);
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appie.setShadows(true);
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gApp = &appie;
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GLDebugDrawer draw;
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physicsSetup.m_dynamicsWorld->setDebugDrawer(&draw);
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btClock timer;
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unsigned long prevTime = timer.getTimeMicroseconds();
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do
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{
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unsigned long curTime = timer.getTimeMicroseconds();
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if (!appie.isIdle())
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{
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physicsSetup.stepSimulation((curTime-prevTime)*(1./1000000.));
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}
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prevTime = curTime;
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window->startRendering();
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br.syncPhysicsToGraphics(physicsSetup.m_dynamicsWorld);
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appie.renderme();
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physicsSetup.m_dynamicsWorld->debugDrawWorld();
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window->endRendering();
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} while (!window->requestedExit());
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}
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window->closeWindow();
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delete window;
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physicsSetup.exitPhysics();
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printf("hello\n");
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}
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